Apiron

Changed
- Modernize package quality tooling and configuration
- Add support for Python 3.13

Changed
- Updated to simpler typing syntax for optional arguments and iterable types using `pyupgrade`
- Reformatted files constrained to Python 3.8+ syntax using `black`
- Updated documentation to prefer `tox` usage
- Updated documentation dependencies and removed upper bounds on their versions
- Add support for Python 3.12
- Remove upper bound on dependencies

Removed
- apiron no longer supports Python 3.7, which reached end of life on 2023-06-27
- apiron no longer supports Python 3.8, which reaches end of life on 2024-10-31

Fixed
- Update permissions in publishing workflow to allow publishing of files to GitHub releases

Changed
- Use `package` and `wheel_build_env` to speed up tests as this is a pure Python package. See the [tox docs](https://tox.wiki/en/latest/upgrading.html#universal-wheels) for more detail.

Changed
- Use PyPI trusted publishing instead of manual token authentication

Added
- You can now configure `retry_spec` and `timeout_spec` at the endpoint level. Calls to endpoints may override the endpoint-level configuration when necessary.